Compare.java

The following is a Java command line tool that searches each line of the file in another file specified. To compile,

javac Compare.java

To run the program,

java Compare data.txt file.txt

import java.io.*;

public class Compare
{
    public boolean contains(String str, String text)
    {
 boolean found=false;
 if(0<=text.indexOf(str))
     {
  found=true;
     }
 return found;
    }
    
    private String readFile(String fileName)
    {
 String text="";
 try
     {
  FileInputStream fis=new FileInputStream(fileName);
  InputStreamReader isr=new InputStreamReader(fis,"utf-8");
  BufferedReader reader=new BufferedReader(isr);
  String line="";
  while((line=reader.readLine())!=null)
      {
   //System.out.println(line);
   text+=line+"\n";
      }
     }
 catch(Exception e)
     {
  e.printStackTrace();
     }
 return text;
    }

    public void compareLine(String org, String dest)
    {
 String text=readFile(dest);
 try
     {
  FileInputStream fis=new FileInputStream(org);
  InputStreamReader isr=new InputStreamReader(fis,"utf-8");
  BufferedReader reader=new BufferedReader(isr);
  String line="";
  while((line=reader.readLine())!=null)
      {
   if(contains(line,text))
       {
    System.out.print("o ");
       }
   else
       {
    System.out.print("x ");
       }
   System.out.println(line);
      }
     }
 catch(Exception e)
     {
  e.printStackTrace();
     }
    }

    public static void main(String args[])
    {
 if(1<args.length)
     {
  Compare compare=new Compare();
  compare.compareLine(args[0],args[1]);
     }
    }
}